I see that the OP has a motorhome.
With motorhomes, one could go a LONG WAY with a blown alternator ... just hold or tape the boost switch closed and let the coach battery bank capacity add to the chassis battery capacity to keep the engine, headlights, etc. going. Or better still, start the coach's built-in generator, keep the boost switch closed, and then drive until either the fuel powering the generator, or engine, runs out.
The above is one "emergency feature" that TT and 5'er RVs can't match easily, or at all. :)